40 lines
798 B
Bash
40 lines
798 B
Bash
#!/bin/sh
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#
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# $FreeBSD$
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#
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# PROVIDE: preseedrandom
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# KEYWORD: nojail
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feed_dev_random()
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{
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if [ -f "${1}" -a -r "${1}" -a -s "${1}" ]; then
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cat "${1}" | dd of=/dev/random bs=8k 2>/dev/null
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fi
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}
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soft_random_generator=`sysctl kern.random 2>/dev/null`
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if [ -n "${soft_random_generator}" ] ; then
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echo -n 'Pre-seeding PRNG:'
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# XXX temporary until we can improve the entropy
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# harvesting rate.
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# Entropy below is not great, but better than nothing.
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# This unblocks the generator at startup
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( ps -fauxww; sysctl -a; date; df -ib; dmesg; ps -fauxww; ) \
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| dd of=/dev/random bs=8k 2>/dev/null
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cat /bin/ls | dd of=/dev/random bs=8k 2>/dev/null
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# First pass at reseeding /dev/random.
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#
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if [ -w /dev/random ]; then
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feed_dev_random "/entropy"
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fi
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echo -n ' kickstart'
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echo '.'
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fi
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